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miv72 [106K]
3 years ago
5

Does anyone know how to solve this?

Mathematics
1 answer:
Margarita [4]3 years ago
4 0

Answer:

The correct option is c.

Step-by-step explanation:

Given that,

u = 7i+4j and v = 2i-3j

We need to find the product of u and v. The dot product of two vectors is given by :

u{\cdot}v=(7i+4j){\cdot} (2i-3j)\\\\=(7i)(2i)+(4j)(-3j)\\\\=14-12\\\\=2

So, the dot product of u and v is equal to 2.

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I need help how would i write an email for this-
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Answer:

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Step-by-step explanation:

8 0
2 years ago
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Write an inequality, in slope-intercept form, for the graph below. If necessary,
Rama09 [41]

Given:

The graph of an inequality.

To find:

The inequality in slope intercept form.

Solution:

The slope intercept form is:

y=mx+b

Where, m is slope and b is y-intercept.

From the given graph it is clear that the boundary line passes through the points (-3,0) and (0,-3).

y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)

y-0=\dfrac{-3-0}{0-(-3)}(x-(-3))

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From the given graph it is clear that the boundary line is a solid line and the shaded region lies above the line, so the sign of inequality must be "≥".

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8 0
3 years ago

kupik [55]
Using inductive reasoning, the best answer from the given shapes is:
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Betsy and 3 of her friends are splitting a whole watermelon. There are 6 circular slices of watermelon. How many slices of water
ycow [4]
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6 0
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Y varies directly as x.if y=-5 when x =15find x when y=3
Tpy6a [65]
Y=kx
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-5/15=k
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now,
y=-1/5x
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3×5=-1(x)
15=-1(x)
multiplying both sides by -1,we get
-15=x
3 0
3 years ago
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